9620121 has 16 divisors (see below), whose sum is σ = 14960000. Its totient is φ = 5496624.

The previous prime is 9620119. The next prime is 9620129. The reversal of 9620121 is 1210269.

It is not a de Polignac number, because 9620121 - 2¹ = 9620119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9620129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3646 + ... + 5703.

It is an arithmetic number, because the mean of its divisors is an integer number (935000).

Almost surely, 2^9620121 is an apocalyptic number.

It is an amenable number.

9620121 is a deficient number, since it is larger than the sum of its proper divisors (5339879).

9620121 is an equidigital number, since it uses as much as digits as its factorization.

9620121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373 (or 9359 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 9620121 is about 3101.6319897757. The cubic root of 9620121 is about 212.6800946155.

The spelling of 9620121 in words is "nine million, six hundred twenty thousand, one hundred twenty-one".